Bestand
1947,2,9,10; 1948,2,5/6,8-12; 1950,7,11; 1951,2,7-12; 1953; 1956,1,2,4-6,8-11; 1957 - 1960; 1961,2-10,12; 1962; 1963,1,8-12; 1964,1,3,4,7-9,11,12; 1966,1-6; 1967,3,6,12; 1968,1-6,8-11; 1969,7-12; 1970,1-10,12; 1971,5,7-12; 1972; 1973; 1974,1-10; 1975,1-6,8-12; 1976; 1977,1-6,8-12; 1978 - 1986; 1987,1-11; 1988,1-3,9-12; 1989 - 2003; 2004,1,3-12; 2005 -